Mixing and aerating machine



W V. DAWKINGS.

MIXING AND AERATING MACHINE.

APPLICATION FILED JAN.13. 1921.

1 84,383. Patented July 12, 1921.

Fig.1 IIvv (En/fol Daafilw'zya;

Ja W

flbi'vonneys:

UNITED STATES PATENT OFFICE.

MIXING AND AERATING MACHINE.

To all whom it may concern:

Be it known that I, WILLIAM VANSON Dawnmes, a subject of the King ofGreat Britain and Ireland, residing at 58 Canterbury road, Whitstable,in the county of Kent, lllngland, have invented certain new and usefulImprovements in Mixing and Aerating- Machines, of which the following isa specification.

This invention relates to machines for mixing and aerating materials forthe making of cakes, confectionery and the like.

The said machines as now constructed comprise a cylindrical or other panor trough wherein the mixing of the materials is effected by a rotatingbeater having grids or blades radiating from a central stem. With suchheaters it is found in practice that the air entrapped in the materials,and which it is very desirable to retain therein, is to a great extentdissipated or forced out by the action of the grids or blades.

The object of this invention is to provide simple and convenient meansfor the accomplishment of the said mixing with the retention of theentrapped air and the thorough incorporation of the same with thematerials under treatment.

The invention comprises the use of a heater provided with a series ofslats or blades set at an angle with their path of motion or that of thematerials to be mixed, such as will cause the said. slats or blades tomake a slanting progression through or contact with the materials whichbecome mixed and incorporated by the action. of the inclined faces ofthe slats or blades.

Referring to the accompanying sheet of explanatory drawings Figure 1 isa sectional elevation of one type of mixing machine having thisinvention applied thereto.

Fig. 2 is a sectional plan of the beater on the line A. B. of Fig.

In the example illustrated the materials to be treated are placed in thepan or re ceptacle a adapted for rotation through the worm Wheel 6 whichis engaged by a worm mounted on the shaft 0, the latter being driven bybelt (Z from the second motion shaft of the change speed gearbox e atthe upper end of the machine. The first motion Specification of LettersPatent. Pate t d Jul 12 192 Application filed January 13, 1921.

Serial No. 437,059.

shaft of the said gear box (which is of anv known type and therefore notfully showii in the illustration) is driven by belting running on pulleyf. l

The beater having angularly disposed slats or blades as it, preferablyformed integrally therewith fixed. on the shaft -?1 which is mounted ona bracket 7' carried by the boss or like part 76 of the machine frairiing. The said bracket j, which also carries the. shaft or spindle Z, canbe rotated in the supporting boss or like part is by the hand wheeloperated worm gearing at m. By such rotation of the bracket 7' thelatter, together with the beater y. can be varied in position betweenthe full line and dotted line positions shown at Fig. 1. l

The rotation of the heater 9 is effected through the medium of the bevelgears shown at Fig. l. The heater can be raised and lowered by means ofthe hand lever 92- which is connected by side links to the upper part ofthe beater spindle i. l

T he beater may be fixed or held stationary and the required relativemovement of the materials under treatment obtained by the rotation ofthe pan or receptacle alone.

The heater may be in varying forms to meet varying requirements or typesof machines and provision may be made for adjusting the angularity ofthe beater slats or blades.

By the use of a heater constructed in accordance with this invention avery efficient mixing and aeration of the materials or ingredients isobtained without any violent distortion or disturbance of the same bythe beater action.

Having thus described my invention what I claim as new and desire tosecurebyLet- WILLIAM VANSON DAWKINGS.

i' l signed my

